56 lines
2.0 KiB
Ruby
56 lines
2.0 KiB
Ruby
# The Cache Buster extension
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class Middleman::Extensions::CacheBuster < ::Middleman::Extension
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def initialize(app, options_hash={}, &block)
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super
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# After compass is setup, make it use the registered cache buster
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app.compass_config do |config|
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config.asset_cache_buster do |path, real_path|
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real_path = real_path.path if real_path.is_a? File
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real_path = real_path.gsub(File.join(root, build_dir), source)
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if File.readable?(real_path)
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File.mtime(real_path).strftime('%s')
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else
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logger.warn "WARNING: '#{File.basename(path)}' was not found (or cannot be read) in #{File.dirname(real_path)}"
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end
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end
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end if app.respond_to?(:compass_config)
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end
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helpers do
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# asset_url override if we're using cache busting
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# @param [String] path
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# @param [String] prefix
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def asset_url(path, prefix='', options={})
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http_path = super
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if http_path.include?('://') || !%w(.css .png .jpg .jpeg .svg .svgz .webp .js .gif).include?(File.extname(http_path))
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http_path
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else
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if respond_to?(:http_images_path) && prefix == http_images_path
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prefix = images_dir
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end
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real_path_static = File.join(prefix, path)
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if build?
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real_path_dynamic = File.join(build_dir, prefix, path)
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real_path_dynamic = File.expand_path(real_path_dynamic, root)
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http_path << '?' + File.mtime(real_path_dynamic).strftime('%s') if File.readable?(real_path_dynamic)
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elsif resource = sitemap.find_resource_by_path(real_path_static)
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if !resource.template?
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http_path << '?' + File.mtime(resource.source_file).strftime('%s')
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else
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# It's a template, possible with partials. We can't really
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# know when it's updated, so generate fresh cache buster every
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# time during development
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http_path << '?' + Time.now.strftime('%s')
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end
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end
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http_path
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end
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end
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end
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end
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